Outbreaks tracker

Active Ebola virus disease outbreak caused by Bundibugyo ebolavirus across the Democratic Republic of the Congo (Ituri province) and Uganda — PHEIC declared by WHO on 18 May 2026. Per WHO Situation Report dated 18 May 2026: 528 reported cases across both countries (2 lab-confirmed in Uganda, 526 under investigation), 132 deaths, 668 contacts identified (541 in DRC, 127 in Uganda). The DRC has opened three Ebola treatment centers in Ituri; the US State Department issued a Level 4 'Do Not Travel' advisory for DRC; the US CDC has restricted entry from affected countries. South Sudan, South Africa and Germany are conducting contact tracing on returning travelers. No vaccine or monoclonal-antibody therapy is currently approved for the Bundibugyo strain. OutbreakWatch syncs counts every 2h via authoritative-source extraction (WHO, PAHO, Africa CDC, CDC, ECDC, ProMED, plus Reuters, AP, BBC, NYT, Washington Post, ANSA, Le Figaro, Le Monde, Süddeutsche, Tagesschau, Bloomberg, STAT News).

Cluster of Andes hantavirus infections aboard the Dutch expedition cruise ship MV Hondius, which departed Ushuaia, Argentina on 1 April 2026 carrying 197 international passengers. WHO, CDC and ECDC are coordinating the international response; the ship has since departed the Canary Islands en route to the Netherlands. Contact tracing remains active across additional countries. Live case, death and country counts are shown above and refresh hourly from D1.